Yarn-sizing machine.



B. E. BYRD.

YARN SIZING MACHINE.

APPLICATION FILED NOV. 10. 1914.

T E E H A s T E E H S 3 Ill/VENTOH WITNESSES B. E. BYRD.

' YARN SIZING MACHINE.

APPLICATION FILED NOV.l0| 1914.

Patented Feb. 6,1917.

3 SHEETS-SHEET 2 A WORN/5Y6.

WITNESSES:

YARN SIZING MACHINE. APPLICATION FILED Nov.10. 1914.

1,214,99. Patented Feb. 6,1917.

3 SHEET3 EET 3.

x mm III/II IIIIIIIII I mil/III III BRITTGN E. BYRD, 9F DURHAM, NORTH CABGLINA, ASSIGDTOR, BY MESNE ASSIGN- MENTS, T0 MILL DEVICES COMPANY, CF LYON PARK, NEAR DURHAM, NORTH CARO- LINA, A CORPORATION OF NORTH CAROLINA.

YARN-SIZING MACHINE.

1,2ild,3198.

Application filed November 10, 1914.

To all whom it may concern:

Be it known that I, BRITTON E. BY'RD, residing at Durham, in the county of Durham and State of North Carolina, have invented certain new and useful. Improvements in Yarn-Sizing Machines, of Which thefollowing is a specification.

This invention has reference to machines for slashing and sizing yarns or threads prior to the use of the same in a loom, and in the p actical operation of which the threads or yarn are drawn from the thread beams at one end of the machine, caused to travel into and through the sizing substance, thence to means that removes or squeezes the superfluous sizing substance from the said threads, and thence caused to travel over drying means and finally passes along to and taken up by the loom beam.

In the use of machines of the general character stated usually when the machine is stopped, that is the passing of the thread from the thread beams to the take-up or loom beam is arrested, if but for a very short time, those portions of the yarn or threads in the act of sizing and which have not been passed through the squeezing rolls, become hardened and injured, by reason of the sizing material drying thereon and hence before the machine can be again started, to efl'ect the desired sizing operation, all. of the yarn between the sizing means and the take-up or loom beam must be cut out and removed, causing, as it were, the total loss of such lengths of the yarn, and also much loss of time 011 the part of the attendant.

My invention primarily has for its object to provide certain improvements in machines of the type referred to in which the stopping of the machine for any length of time prior to the filling of the loom beam with the sized yarns does not necessitate the cutting out of any portion of the yarn and by which, in case of stoppage of the machine. the yarn or threads can be so manipulated that danger of the sizing material hardening on the threads is entirely over come and the said threads thereby held in Specification of Letters Patent.

Patented Feb. 6, 1911?.

Serial No. 871,318.

readiness when again starting the machine for a proper passage through the sizing material, the squeezing means, the drying devices and to the take-up or loom beam.

With other objects in view, that will hereinafter appear, my invention embodies the peculiar features of construction and novel arrangement of the parts that constitute my improved yarn. sizing machine. all of which will be hereinafter first described in. detail, then be specifically pointed out in the appended claims and illustrated in the accpmpanying drawings in which:

Figure 1 is a side elevation of a yarn siz ing or slashing machine that embodies my improvements.

Fig. 2 is a detail enlarged section of the sizing tank.

Fig. 3 is a transverse section of the sizing tank, taken substantially on the line 33 on p Fig. 2 and illustrates the manner in which the sizing roll is mounted on the said tank.

Fig. i is a perspective view of the slack take-up devices hereinafter referred to.

Fig. 5 is a diagrann'natic vertical sectional view that shows the yarn loop forming member at the dropped or lower position for taking up the slack in the yarn threads for causing that portion of the sized yarn that has not reached the squeeze rolls to pull through the said rolls.

Figs. 6 and 7 are detail views of parts of the rockably mounted thread or yarn guide that forms a part of the aforesaid take-up devices.

Fig. 8 is a perspective view of that end of the machine in which is mounted the loom beam and the tension devices hereinafter specifically referred to.

Fig. 9 is a section on the line 99 on Fig.

'8, showing the tension device adjusted for tank in which is contained the starch or sizing substance and located at one end of the framing.

3-3 designate the lower squeeze rollers journaled in the side beams of the main frame above the tank 2 and with which cooperate the upper squeeze rollers 4, which, when the machine is in operation, engage the rollers 3 and which are removably mounted in the slotted bearings 5 on the sides of the frame 1, the bearings opening upwardly so as to permit the squeeze rollers to be unshipped therefrom. To provide for supporting the upper squeeze rollers 4 when removed from their bearings 55, other slotted bearings 6-6 are mounted on the frame adjacent the bearings 5-5 and they extend upwardly to a higher point than the bearings 5-5 so as to support the rollers 4 away from the lower rollers 3.

1O designates the usual main-drying cylinder mounted on the frame 1 and 11 designates a smaller drying cylinder located between the tank 2 and the large cylinder 10.

i) designates a direction or guide roller mounted on the rear end of the machine over the inlet edge of the tank 2 and 7 denotes a slashing or sizing roll, whose journals are mounted in grooves 8 in the vertical members 8 of the frame 1, so that the said roll may be lowered to cause the yarns to be sized to run through the sizing material in the tank 2 during the operation of sizing and when elevated to permit the said yarns to be run without coming in contact with sizing material.

131415 designate the yarn beams mounted on a frame 31 suitably located with reference to the tank 2 and from which the yarns, indicated by a on Fig. 1, pass to the sizing tank.

The several parts of the sizing machine shown in the drawings, so far described, are of a well-known construction, and per se, they form no part of my invention, since my. said invention is especially confined to the yarn take-up and the yarn tension devices, and the means for maintaining the yarn thread in a taut or straight line in its passage from the squeeze rolls to the larger or main drying drum, and which I shall now proceedto describe.

' A pair of'vertically disposed standards are secured to opposite sides of the frame 1 at a point between the sizing tank and the drying cylinder 12 and each of such standards includes a lower or fixed member 32 and an upper member 32 supported by and having vertical adjustment in the fixedly held members 32. The upper members 32 each have a vertical groove 34 on the inner face, that extends from the upper to the lower end thereof. 7

3637 designate a pair of tubular guides or rollers, the ends of which receive short stub journals 3838 on the opposite ends of the rocker arms 39, one of which is pivotally mounted on the outer face of the upper ends of the standard members 32, and the pivot members 35 for such arms 39 are adbe adjusted and shifted to the required angle, relatively to theline of angle, the threads take as they pass from the squeeze rolls to the large or main drying drum and thus keep the yarns in a perfectly straight line from the said squeeze rolls to the drier. Cooperating with the rollers 3637 is a tubular guide roller 40 mounted on the stub journals 41 on the inner face of heavy bars 42 adapted for slidably engaging the grooves in the standard members 32 and the said bars each include a weighted member 43 hingedly joined with the member 42 to fold out in alinement with the said member 42 when it is desired to lower the members 42 down on the grooved members 32*" and to swing over, atright an les over the upper end of the members 32 to support the roller 40 at a point above the rollers 36 and 37 and out of engagement with the threads during the sizing operation. 7

44 designates the loom beam that is removably mounted in bearings at the front end of the machine and upon which the sized yarn is wound.

The tenslon devices in my improved construction of yarn sizing machine, and which are best shown in Figs. 8, 9 and '10 of the drawing, consist of a pair of horizontally disposed friction rollers 50 located one at each sideof a' roller 16, which is of larger diameter than the rollers 50 and located between such rollers and below the same,

and the said roller 16 has bearings in the main frame of the machine. 7

Rollers 505O are loosely supported at their ends above hanger bars 51 justably mounted on the lower ends of.

hanger arms 52-52, the upper ends ofv which are pivotally hung on stud bearings Each hanger arm has a notch so arranged, relatively to its pivotal connection with the lever members to slip over and interlock with the studs 55 on the lever arms when the latter is swung over to raise the rollers 50 to provide for the desired tension on the yarn threads during the operation of sizing and for holding the said rollers 50 locked on the elevated position, it being un derstood by reference to Fig. 9, that when the lever 54 is swung over to the position shown, the pivotal connections for the hanger arms are beyond the line 01 center of the pivotal bearing for the lever 5i.

From the foregoing taken in connection with the drawings, the complete construction and the advantages of my invention will be readily apparentv In operation of slashing or sizing the threads, and assuming the drying cylinders to be revolving in the direction indicated by the arrows, the warp threads are drawn from the beams and caused travel over the guide roller 9, under the sizing roller 7 and the said roller 7, being new at its lower po sition causes the threads to contact with the sizing material in the tank 2, from which point the yarn threads pass between the upper and lower squeeze rollers 3 and 4, which serve to remove the superfluous sizing mater'al or starch from the yarns, the sized yarns being dried as they pass over the cylinders l012, from which they pass over guide rollers Gl-62, to the tension devices and thence to the loom beam, reaching the latter in a dry condition, suitable for use in the loom.

before stated, in other types of sizing machines, when the operation of sizing is temporanlr stopped, the yarn between the si ing tanl, to the loom beam is cut out and wasted. In the construction of sizing machine shown in the drawings, when the machine is stopped, at any time prior to filling the loom beam, the operator turns up the weighted member l3 in line with the member 42, to allow the said member 42 to drop and to bring the roller 40 down between the rollers 3637, to cause the roller a0 to engage the yarns and as the said roller 40 is of greater weight than the sizing roller 7, it produces a pendent loop or bight in the yarn ano in doing so takes up slack between the guide roller and the squeeze rollers, and hence causes the yarn to raise the sizing roller out of the sizing tank and those portions of the yarn to which sizing has been applied, and which had not been reached by the squeezing rollers, will be caused, by the taking up of the slack thereon, by the roller 40, to be drawn between the squeeze rollers and relieved of superflous sizing material, and also be thereby kept from becoming hardened and injured by drying. It should be stated that the drawing of the threads through the squeezing rolls when applying the take-up to form the loop or bight, as stated, is positively effected, by reason of the tension device at the loom beam end holding the threads from pulling backward, the slack that forms the loop being provided by pulling the yarns forwardly from the sizing tank, (see arrow 4 on Fig. 5).

After the slack in the yarns has been taken up, the operator unships the upper squeeze rollers from the bearings 5 and places them in bearings 6 to thereby entirely remove the yarn from contact with the lower squeezing rollers. After the rollers have been thus placed, the operator swings the lever of the tension devices to the position shown in Fig. 9, which drops the rollers at each side of the roller 16 and thus relieves the tension of the yarn.

The operator then turns the yarn carrying beams at the tank end and winds the yarn back again until the desired portions to be sized are positioned for being advanced to and through the sizing material.

It should be stated that when the machine is positively driven by applying power direct to either of the drying cylinder shafts, the tension devices are adjusted for the free passing of the yarn threads between the coacting friction rolls, but when the driving power is indirect, for example, applied to the take-up or loom beam, as is done in some yarn sizing machines, the said tension devices are operatively adjusted to maintain a regular or even pull on the threads as they pass up from the driers to the tension rolls.

Another and important advantage in making the standards vertically adjustable and mounting the transverse guide rollers over which the threads pass 011 rockable arms, is that provision is made for adjusting the said rocker arms to any height relatively to the line of feed of the threads from the squeeze rolls to the drying cylinders of different sizes and thus provide, as it were, for a yielding bearing for the threads that overcomes strain on the threads by having them pass in other but straight line from the squeeze rolls to the drying cylinders.

While I have shown and described the tention devices that form a part of my complete yarn sizing machine, I make no claim in this application to the said tension devices since they form the subject matter of my co-pending application, Serial No. 77,601, filed Feb ruary 11, 1916, and which is a divisional part of this application.

What I claim is:

1. In a yarn sizing machine, the combr nation with the sizing tanir, the sizing roller, the squeezing rolls, the means for drawing the yarn through the said rolls and a ten sion device to hold the yarn from backward fro movement; of a mechanism for raising the said sizing roller from immersion and advancing the yarn between the sizing roller and the squeezing rolls a sufficient distance to squeeze out the surplus sizing substance from the yarn, the said last named mechanism comprising standards, said standards including vertically extensible members, side arms rockably mounted on the standards, transverse guide rollers mounted on the ends of the said side arms and over which the tireads pass, a weighted tension element movable vertically between the said standards, and including a transverse member adapted for passing down between the thread guide rollers when the tension element is lowered, and means for lifting the tension element and supporting it with its transverse yarn engaging member raised abovethe said yarn.

2. In a yarn sizing machine, the combination with the sizing tank, the sizing roller, the squeezing rolls, the means for drawing the yarn through the rolls and a tension device to hold the yarn from backward movement; of a mechanism for raising the said sizing roller from immersion and advancing the yarn between the sizing roller and 's ueezin rolls a suflicient distance to squeeze out the surplus sizing substance from the yarn, the said mechanism comprising standards that include upper extensible sections, each of which has a groove extending the full length thereof, rocker arms pivotally mounted on the said standard sections, transverse guide rollers journaled in the ends of the rocker arms for engaging the yarn threads, a weighted extension element mounted on the standards and having vertical movement between the standards, the said element including members slidable in the grooves of the standards, a cross bar journaled between the said slidable members and adapted when the members are moved downwardly to engage the yarn threads and carry them down in a loop form between the transverse guide rollers on the rockable arms, lifting members hingedlyv connected to the upper ends of the said slidable members and adapted for being swung over the upper ends of the standards to hold the said slidable members and the cross member when the latter is elevated above the yarn threads.

3. A slack take-up mechanism for yarn sizing machines comprising a pair of oppositely disposed standards each consisting of a lower and fixedly held portion, and an upper portion vertically adjustable upon the said lower portion, the said upper portions of the standards having a continuous groove on the inner face thereof and a series of vertically disposed apertures in the upper ends thereof, a cross arm for each of the upper sections, a pivotal connection that joins the said arms with the said upper sections, transverse guide rollers, a pair of oppositely disposed slide bars mounted in the grooves of the said upper sections, a transverse presser member secured to the slidable bars and adapted, when the yarn ispassingover the transverse guide rollers for being moved down between the said rollers to form a loop and draw the threads between the squeezingrolls and a lifting member slidably connected to the slide bars and adapted when the bars are lifted to swing over the upper ends of the standards to hold the slide bars up and to swing into'alinement with the slide bars to move with the said bars in the standard grooves.

4:. In a sizingmachine of the class described, the combination of a sizingtank, a sizing roller movable vertically in the tank, a. drying cylinder, squeeze rollers disposed in the line of feed of the threads between the said squeezing roller and the drying cylinder, guide standards arranged in the line of feed of the threads between the squeeze rolls and the drying cylinder, side arms rockably mounted on the guide standards, transverse guide members over which the threads pass, the said guide members being journaled in the ends of the rockably mounted arms, and a weighted tension element that includes means for engaging the standards to normally hold the said element out of contact with the threads, the said element being adapted when released to travel on the side standards down between the aforesaid transverse guide members to carry the threads below the said guide members to form a bight or loop in the yarns and tension the same to raise the sizing roller andv cause the yarns to pass between the squeeze rolls.

5. In a yarn sizing machine of the character stated; the combination with the sizing rollers and means for drawing the yarn through the rolls and other means for holding the yarn from backward movement; of a mechanism for raising the said sizing roller from immersion and advancing the yarn between the sizing roller and the squeezing rollers a suflicient distance to squeeze out the surplus sizing substance from the yarn, the said mechanism comprising a pair of oppositely disposed standards,

each of which includes an upper extensible section having a vertical groove that ex tends the full length thereof, a pair of rocker arms pivotally and adjustably mounted on the said extensible standard members, transverse yarn guide rollers journaled in the opposite ends of the said rocker arms, a weighted extension element mounted on the grooved standard members, the said element including members slidable in the groove of the said standard members, and

weighted arms hingedly journaled with the members that slidably engage the aforesaid grooved standards and are adapted to be extended in alinement with the said slidable iembers When it is desired to lower the weighted extension element to take up the slack in the yarn, and adapted to be swung out at right angles to the said slidable members to rest upon the upper ends of the grooved standard sections to thereby hold the weighted member from dropping down between the said standards.

BRITTON E. BYRD. Witnesses:

VERNE REA,

0. W. BYRD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of IE'atents, Washington, D. U. 

